Gas shipping tank



Nov. 14, 1939. c o BOOTH I GAS SHIPPING TANK Filed March 9, 1938 4 Sheets-Shee't l Carlefan flgool fi Attorneys Nov. 14, 1939. c, o. BOOTH GAS SHIPPING TANK Filed March 9, 1958 4 Sheets-Sheet 2 Inventor @wrle ion QBoof/L A iiomeys Nov, 14, 1939. c. o. BOOTH GAS SHIPPING TANK Filed March 9, 1938 4 Shee'ts-$heet 3 A iiomeys Nov. 14, 1939. co. BOOTH 2,179.682

GAS SHIPPING TANK Filed March 9, 1958 4 Sheets-Sheet 4 1 lm ie nio: briefer?! 0,3002% A ttomeui Patented Nov. 14, 1939 UNITED STATES PATENT OFFICE GAS SHIPPING TANK Carleton 0. Booth, Albuquerque, N. Mex. Application March 9, 1938, seri l No. 194,917

3 Claims.

This invention appertains to new and useful improvements in containers for shipping gas or other fluid under high pressure, such as natural gas, hydrogen, helium, etc.

The principal object of the present invention is to provide a shipping tank for high pressure gases wherein means is provided substantially precluding the possibility of any leakage of gas.

Another important object of the invention is to provide a shipping tank for gases under high pressure wherein means is provided for accommodating any surplus increasein the gas presture, without losing any of the gas Other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings: Figure 1 represents a side elevational view of the tank. I

Figure 2 is a longitudinal sectional view,

Figure 3 is a transverse section on the line 3-3 of Figure l. v

Figure 4 is a transverse sectional view on the line lll of Figure l.

Figure 5 is an enlarged vertical sectional view through the intermediate portion of the tank.

Figure 6 is a fragmentary detailed sectional view of the tank closure.

Figure '7 is a fragmentary detailed sectional view through the gas bag.

Figure 8 is a fragmentary top plan view of the intermediate portion of the tank.

35 Figure 9 is a fragmentary elevational view of the spraying means.

Figure 10 is a fragmentary detailed sectional view on the line ill-ill of Figure 1.

Figure 11 is a fragmentary detailed sectional view of a modified form of valve or air outlet for the tank.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents the elongated cylindrical tank having the end walls 66 and the ovateshaped closure 1 at its top. This ovate-shaped closure l is substantially shown in Figures 5 and 6, the same consisting of a steel plate having an upstanding boss 8 at each end thereof and formed with a vertical bore 9, each of these bosses 8 being anchored in the closure l as at Ill.

An ovate-shaped flange II is disposed over the tank 5 so as to partly overlap the opening l2 in 55 which the closure i fits and as is clearly shown in Figure 6, the flange II is snugly riveted to the tank 5 as at l3.

Screws l4 are disposed through openings IS in the flange" II and driven into the bosses 8 after the ovate-shaped closure I has been disposed in place by first inserting one of the bosses in a direction transversely to the longitudinal axis of the opening and then the other end of the closure and then rotating the closure at the inside of the tank so that it will come into registry with the opening l2.

A pipe l6 extends downwardly through an opening in the closure 1, the lower portion of the pipe It being threaded to accommodate the steel or metal washers ll above and below the 15 closure plate I as well as the resilient packing members l8 and the nuts l9. The upper portion of this pipe I6 is disposed laterally as at 20 and has the valve 2| therein. A nipple 22 is provided at the upper end of the pipe 20 and to this can be connected the conduit for charging the tank with gas.

The pipe l6 also extends into the bag 23 which is of rubber or some other similar resilient material and this when expanded fllls the entire interior of the tank 5.

As the bag 23 is inflated, air is driven from the tank 5 and as is clearly shown in Figure 2 the upper and lower portions of each end of the tank are provided with a perforated area 24 over which a dome 25 is located for collecting air expelled from the tank during inflation or the bag 23. The air is taken into the take-ofi pipe 26, which has control valves 21 therein and each pipe 26 has vent tubes 26 connected therewith between the control valves and the points where the pipe 26 joins the domes 25 and each vent tube has a control valve 21' therein.

A modification of the structure involving the perforated areas 24 and domes 25 is shown in 4 Figure 11 wherein the bag can inflate against the valve plate 28 and cause the same to engage into its seat 29 against the action of the spring 30, only after all the air in the tank has been expelled, and in this respect the presence of the 45 valve plate 28 will prevent any dust or other foreign matter from entering the tank 5.

Located adjacent the pipe I6 is the box 3| which is supported by the pipe32. This pipe 32 extends from the pipe [6 and into the box 3i and is equipped at its inner end with the pop off valve 33 which will open at a certain pressure. In other words, in traveling across hot areas such as long excessively hot roadways or arid stretches where there is considerable heat from the sun, the pressure in the bag 23 will increase and if excessive will discharge by way of the valve 33 into the box 3|. In this instance, gas will pass out through the valved conduit 34 and by way of the branch pipes 35-38 to the auxiliary compartments 31-3'| on the top of the tank, these compartments extending downwardly somewhat on the side portions of the tank 5.

Each of these auxiliary compartments 3! is provided with a closure plate 38 and each has a resilient inflatable bag 39 therein. In addition to this, the two compartments 3'! are substantially filled with water, preferably to the level 33 and extending from the compartments 3! at a point above this level 38 are the pipes 40 which extend\ downwardly below the lower portions of the compartments 3! and connect to the horizontally disposed spray pipes 4|, one being located at each side of the tank 5. Thesespray pipes 4| are perforated and obviously when pressure becomes excessive in the tank and escapes through the box 33 and pipes 35-36 to the bags 39 in compartments 3! by way of the pipes 42, the bags 39 will be inflated and the water will be displaced from the compartments 3! so that it will pass downwardly to the spray pipe 4| to be sprayed on to the sides of the tank 5 so as to cool the same, especially by evaporation to the extent that the interior of the tank will be somewhat cooled to lower the pressure of the gas content as the tanks or compartments 31 fit over the upper portion of the main tank 5 the water in these tanks 31 will act to cool the gas in the tank 5 and the expanding gases in the tanks 3| will act to cool the gases in the tank.

5. Therefore, the pressure of gas in the main tank is lowered first by escapement of some of the gas, second the heat absorbed by the escaped gas in the resilient tanks, and third the heat absorbed by the water from the overflow.

A dome A encloses the pipes 20 and I6 and the parts carried thereby as well as the box 3| and its valved connections 35,36, 34 and 43, the dome being equipped with a door for permitting access to the parts enclosed thereby.

The conduit 34 is provided with an auxiliary valved pipe extension 43 for permitting the removal of the gases from the tanks 31 in any suitable manner.' The pipe l8 has a pressure gauge 44 mounted thereon and also a thermometer 45, this thermometer extending vertically in the pipe l3 and through the packet cap 46 at its upper end.

While the foregoing specification sets forth the invention in specific terms, it is to be definitely understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. Gas shipping means comprising a tank, a water chamber on the tank, a spray pipe at each side of the tank, connections between the water chamber and the spray pipes, a conduit between the tank and the rhamber, an excessive pressure releasable valve in the conduit, an inflatable bag in the chamber, said conduit extending to and communicating with the interior of the said bag,

2. In a device of the class described, a tank for containing gas, a water chamber partly surrounding the tank, spray pipes extending along the sides of the tank, pipes connecting the spray pipes with theinterior of the water chamber, a safety valve, a conduit connecting the same with the interior of the tank, a casing surrounding the safety valve and a conduit connecting the casing with the water chamber for conducting gases escaping from the safety valve to the water chamber to force water therefrom through the spray pipes.

3. In a device of the class described, a tank, an inflatable bag in the tank, means for introducing gas into the bag, a water chamber having parts contacting the tank, outlet means in communication with the top of the water chamber, an inflatable bag in the chamber, a safety valve, a conduit connecting the safety valve with the interior of the gas bag in the tank, a casing surrounding the safety valve and a conduit connecting the casing with the bag in the water chamber for conducting gases escaping from the safety valve to said bag in the water chamber to expand the bag in the water chamber to force water therefrom through the outlet means onto the tank.

CARLETON O. BOOTH. 

